空气监测系统的设计

Design of air observation system

在对空气监测需求进行分析的基础上提出了一个环境自动监测虚拟专用网络(virtual private network,VPN)系统的总体设计方案。详细介绍了监测系统终端的采集电路和VPN网关系统的实现,系统主要是利用IPSec的VPN安全网关,因此在系统的软件实现部分重点介绍了IPSec VPN的具体实现模型,并描述了数据在VPN网关中进行IPSec处理时的流程。

Based on analyzing the requirements for the air observation system, the virtual private network （VPN） of the air automatic observation system was designed. This paper introduces the acquisition circuit of the observation system terminal and the implementation of VPN security gateway. Since this system is mainly using IPSec VPN security gateway, the paper mainly discusses the IPSec VPN model and describes how the database is processed in this model.